Proving the Triangle Proportionality Theorem Lesson Materials (Notes, CW, and HW):
These 6 student worksheets will help your students learn how to prove the Triangle Proportionality Theorem, which states that “a line parallel to one side of a triangle divides the other two proportionally.” These lesson materials include a 2-page set of guided notes, a 2-page classwork assignment, and a 2-page homework assignment, for a total of 6 student worksheets!
The guided notes
include a vocabulary section and three examples of how to complete the proof. One of the examples is a shortened version of the proof.
assignment includes proofs where students have to fill in only the reasons and proofs where students have to fill in a mixture of statements and reasons. The classwork assignment has 4 proofs, 2 of which are a shortened version of the proof. Each proof is either 11 steps or 7 steps long.
assignment includes the same 2 types of proofs. It includes proofs where students have to fill in a mixture of statements and reasons.
This set of lesson materials comes with 2 pages of guided notes and 4 pages of proofs practice (1 classwork assignment and 1 homework assignment), answer keys, and a PowerPoint file containing pictures of the worksheets and keys. The worksheets in the PowerPoint are NOT editable. When you purchase this set of lesson materials, you will receive a pdf containing the guided notes, worksheets, and answer keys, and you will receive a PowerPoint file. Before purchasing this product, please review the preview file closely to make sure that these proofs are appropriate for your students.
Please Note: The classwork and homework worksheets included in this product are the exact same worksheets as the ones sold in my "practice worksheets" product. The difference between the two products is that the "lesson materials" come with guided notes. Choose to purchase either the "lesson materials" or the "practice worksheets," but do not purchase both.
If you would like to purchase the practice worksheets without the guided notes, you may also like:
Proving the Triangle Proportionality Theorem Practice Worksheets (Classwork, HW)
This product is intended for use by one teacher. Do not share this resource with other teachers in your school building, district, etc. Do not post this resource or any part of this resource on the internet, on school websites or on network drives. The appropriate number of licenses should be purchased if you wish to use this resource for multiple teachers in a school, district, or organization. Do not share, transmit, or reproduce any part of this resource without the permission of the author. Thank You!
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